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MySQL overhead

 
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sime
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PostPosted: 25.07.2005 14:01    Post subject: MySQL overhead Reply with quote

Zašto se nekad u nekoj MySQL tablici javlja data "overhead", kao neko prekoračenje? I onda kad se lupi "Optimize table" to se riješi?
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zytzagoo
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Joined: 25 Aug 2003
Posts: 1842
Location: Zagreb, Hrvatska

PostPosted: 25.07.2005 14:40    Post subject: Add user to your forum ignore list Reply with quote

http://www.webmasterworld.com/forum88/8803.htm wrote:
Every database will, over time, require some form of maintenance to keep it at an *optimal* performance level. Purging deleted rows, resequencing, compressing, managing index paths, defragmenting, etc. is what is known as OPTIMIZATION in mysql and other terms in other databases.

It's kind of like changing the oil in your car or getting a tune-up. You may think you really don't have to, but by doing so your car runs much better, you get better gas mileage, etc. A car that gets lots of mileage requires tune-ups more often. A database that gets heavy use requires the same. If you are doing a lot of UPDATE and/or DELETE operations, and especially if your tables have variable length columns (VARCHAR, TEXT, etc), you need to keep 'er tuned up.


copy-paste sa gornje adrese... hth
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sime
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PostPosted: 25.07.2005 17:57    Post subject: Reply with quote

zytzagoo wrote:
copy-paste sa gornje adrese... hth

help, helps, thnx.

Zanimalo me samo zašto se to događa, mislia sam da možda nešto krivo radim... To je znači normalno...
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